Dicamba residue persistence in processing tomato

Abstract There is zero tolerance for dicamba and metabolite residue in tomato ( Solanum lycopersicum L.) fruit following exposure to dicamba. Field trials were conducted 2020 2021 determine the persistence of (5-hydroxy 3,6-dichlorosalicylic acid [DCSA]) processing shoots fruits. Dicamba was applied 49 d after transplanting at 0, 0.53, 5.3, 53 g ae ha −1 . Tomato plants harvested 5, 10, 20, 40, 61 treatment (DAT). No 5-hydroxy recovered from any sample. In 2020, DCSA detected shoot tissue when rate 0 (14 µg kg ), 5 (3 20 DAT (5 ) (2 ). 2021, not or tissues harvest date. By DAT, only treated with At detectable on 5.3 had a predicted peak 19 11.3 DAT. decreased 164 8 Furthermore, this study confirms that fruits Growers who suspect should include their collected sample separately.